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Old 19 October 2015, 09:01   #31
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Country: UK - England
Town: Retford
Boat name: Spy-sea-one
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Engine: Suzuki Outboard/25/4
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your right David the small boat has most of the benefits of the larger rib OK the rib takes the bigger sea but for me i want to enjoy it not be thrown about all day at least with the less expensive sib its not such a big one if the weather is against you in terms of cost.the fun factor is great getting right inshore to explore, beach nearly anywhere,no expensive trailer repairs,no complicated steering & throttle systems just simplicity well that's were i have come too and not regretting it.
night-fisher the trailer for me was a no brain er i did try a zodiac 310 solid Johnson 15 2st with transom wheels first beach, gravel & stone pulled my aris out went 2 mile down the road used a slipway easy. if i were to change anything i would put my sib on rollers when i can find a supplier who sells them or a break back trailer so i don't have to float the boat off.

cheers
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Old 19 October 2015, 09:07   #32
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Country: UK - England
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Boat name: Spy-sea-one
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Quote:
Originally Posted by kaman View Post
I have thought for a while now that of all my boys toys that my Sib gives the biggest bang for the buck.
At around 3 and a half grand for the Sib, trailer, 2 new 4 stroke engines, plus the associated accessories bought and bought back in 2010 I've had many memorable days fishing island hopping and pleasure cruising.
It still looks like new - but if it burst and fell to pieces tomorrow I would have no complaints or regrets.
I would buy another one straight away.
A very versatile piece of PVC much greater than the sum of its parts.
nice little set up that Kaman the honwave is real value for money and well made i bought a small one for the grand kids secondhand it was green with slime proper neglected on a river, got her home good clean up good as new.

cheers
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Old 19 October 2015, 09:12   #33
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Hi Jeff I see your comments about getting your Sib on / off the trailer so you don't have to float it on / off.
I use my transom wheels and pull / winch mine on / off.
Never had the trailer wet once.
Don't know if something similar would work with your set up?
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Old 19 October 2015, 11:54   #34
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I bought a SIB (aerotech 420) specifically because we didn't want something on a trailer. We've no space whatsoever to store a trailer, even a folding one. The 420, deflated and folded, sits under a tarp in our postage stamp sized front garden.

I was on this site asking advice before I bought the 420. At the time the general concensus was that anything over 3.2m and 9hp would be impossible to wheel anywhere on transom wheels and I may as well get a RIB on a trailer if I wanted a bigger boat. The reality for me is that the 420 with a 15hp is extremely easy to wheel around, even on rough ground or up steep slipways. I can even boost the deflated boat on my own onto the roof rack. I'm pretty confident that I could still wheel it around on my own with a 25 on the back. However, if you want to be amazed and impressed then type futura 3 fastroller into youtube. There's a guy there shifting a 4.7m futura with a 40hp singlehanded... Had his weetabix for sure...

Simon
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Old 19 October 2015, 13:10   #35
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Country: UK - England
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Boat name: Spy-sea-one
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Length: 3m +
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MMSI: 235074042
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Posts: 3,569
Quote:
Originally Posted by kaman View Post
Hi Jeff I see your comments about getting your Sib on / off the trailer so you don't have to float it on / off.
I use my transom wheels and pull / winch mine on / off.
Never had the trailer wet once.
Don't know if something similar would work with your set up?
Hi kaman

Your trailer is Bob on for you set up mine is a lot higher indispention vario and the boat has the corner strengthaned with a fabric triangles that would stop fitting the wheels , to be honest big rollers would suit me I have seen some on the web called tulip rollers but not able to source them here as for getting it wet not too bothered as I will replace the bearings each season.i have done a few tweaks since last out so going to try a launch see how it goes if not back to the drawing board.

Cheers
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Old 19 October 2015, 13:59   #36
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However, if you want to be amazed and impressed then type futura 3 fastroller into youtube. There's a guy there shifting a 4.7m futura with a 40hp singlehanded... Had his weetabix for sure...

Simon

Hi Simon.
Truth is the heavier the outboard at the back the easier it is to lift the bow when manoeuvring the Sib on its transom wheels.
Mine is a damn sight easier to lift at the bow when my 20hp Tohatsu 4 stroke is on the back than it is to lift with the little Suzuki 2.5hp 4 stroke. Might be harder to move along soft sand with a 40hp on the transom than a 2hp tho
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Old 19 October 2015, 16:04   #37
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Country: UK - England
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Length: 4m +
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Ultimate SIB?

This thread interests me as I'm trying to put together the ultimate SIB.
What makes my concept most usable are aspects often found in small Ribs- but that is NOT to say I want a small rib. I sold a very good small rib before this.
What I am trying to do is cross all the advantages of a SLT (Superlight tunnel hull- think Zapcat, thundercat etc.) with the aspects of a small RIB that make them more usable on a daily basis.
Where I'm at so far:
- Ceasar Surfcat (dryer than most SLTs due to bow tubing), with blocked off transom and elephant's trunk bailers.
- With 2 man console and remote steering and engine controls and power trim motor.

Principally the issue with SLTs for me is you get wet as they have an open transom and you sit on the floor. This makes them a non starter for family boating. Everything else about them is bloody brilliant!

I'm launching it on a trailer at the moment and it's a brilliant package- much better and dryer than I thought it would be. Stupidly economical with its Honda 30 but I'm already craving a little more speed. It's really nice at about 20 knots up on the hulls- lovely soft ride. You can tell how efficient it is once its riding on the tunnel air- you can back right, right off the throttle once its on the hulls. Much more than you back off a monohull RIB that gets onto the plane.

The final part of the puzzle will be to sort out some launching wheels. However key to this will be to have large wheels for sand, shingle etc. (CadKat Bigfoot catamaran launching wheels are my preferred option as soon as I can find a pair secondhand- they are ££££ridiculous new), and mount them on a fold under frame that will bring them to the balance point of the boat- which is a couple of feet forward of the transom. It's mainly the GRP console and the engine that effects this as the boat itself is only 90kgs
I have the design sorted- just waiting for the wheels!

I'm also going 2 stroke 50 instead of 4 stroke 30 as its the same weight but will be a lot more fun. I'll probably keep the 30 for family outings as it is very quiet, refined and economical.

Interestingly, the Surfcat came with the console, power trim engine, blocked up transom etc. in it, so somebody before me had the same idea- but they had sadly not executed it properly.
The console was a foot too far forward which meant as it was coming onto the hulls it was liable to leap into a horrible bowsteering slew due to too much weight forward. I did lots of experimentation to get the console in exactly the right place. Too far forward and it bowsteers horribly. Too far back and you're getting too much air underneath- Donald Campbell here we come!
They had also blocked the transom without establishing any way to get the water out- the main result of which was a rotten floor.

I'm tentatively testing the cornering potential. The boat was originally designed to corner (allegedly up to 2G) with two guys jammed in between the tubes at floor level with feet in footstraps that are bonded to the tubes.
It does not take a great deal of imagination to work out what would happen if you grabbed a load of steering at full speed while sat up on that jockey seat like a marinised meerkat. So it's definitely not a package for the inexperienced.

Back to the thread though about why I want this rather than a small RIB:
It can be run up the beach without damage to gelcoat as it has hard rubber runners under the hijackers. (in South Africa where they race these the race finishes by sliding up the beach at full speed). This is however not the case for all SIBS- airfloors in particular require care.

It has a flat, solid floor underneath- this makes it perfect for accepting my design of balance point launching wheels.

It is a very high performance boat. Your average v-bottomed small RIB is not. This means with the Honda 30 its a much more economical 'economy boat', and with the Yam 50 2 stroke on it (waiting for a short shaft leg for it) I expect it will be a much higher performance 'performance boat'
Zapcats with 50 Tohatsus on them do easy 50 knots.

It is very easy and light to solo launch. I often go out with my partner and our baby son, so I need to do all the launching while she looks after him.

My Novamarine RH450 RIB was an excellent boat, and it did well over 40 knots on the flat which is all very nice, but in a metre of Solent chop you were down to 12-15 knots to remain reasonably dry and comfortable. And this was constant fatiguing work- playing the throttle constantly. This Ceasar Surfcat flies on top of it at 20 knots- probably could do it faster, but it is an air entrapment boat so you do need to be a bit careful. Once you find its safe speed you don't have to play the throttle constantly using lots of fuel.

If I want to put it away for a bit I have made the trailer collapsable and the boat will roll up and the whole lot will store in the back garden behind the shed under a tarp. I sold the last RIB because I did not have space on the drive for it any more and wasn't using it much. With this one I won't need to sell it, I can just put it away for a bit If I'm busy with other things.To get anything in my back garden it has to go through the garage- with a standard door at the back- which this can do easily in bits.
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Old 19 October 2015, 16:51   #38
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Country: Poland
Town: WARSAW
Boat name: T1
Make: HIGHFIELD OM540DL
Length: 5m +
Engine: EVINRUDE 115 HO
MMSI: 261026640
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Posts: 540


It is friend of mine from Polish forum. He has 3,8 GRP RIB (Hypalon tubes)
SPORTIS 3800 (Made in Poland). 90 kg boat, 30 HP engine.

Start below mentioned movie at 6:36
It shows MC 3800 in action (Baltic Sea).


Storage and trailer the same like for SIB ...
So if you use SIB on trailer why not such RIB ?
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